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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 434 (Engine Cooling System) >> Repair Instructions >> Coolant Pump Inlet Hose - Starter/Generator Module Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the starter/generator control module (SGCM) cooling system. Refer to Draining and Filling Cooling System - Starter/Generator Control Module .
  2. Remove the surge tank. Refer to Surge Tank Replacement .
  3. Reposition the SGCM coolant pump inlet hose clamp (1) from the SGCM coolant tank (2).
  4. Remove the SGCM coolant pump inlet hose (3) from the SGCM coolant tank (2).
    5. Fig 1: View Of SGCM Coolant Inlet Hose, Coolant Tank & Inlet Hose Clamp
    GM1206674Courtesy of GENERAL MOTORS CORP.
  5. Remove the bolts (2) from the SGCM coolant pump (1).
  6. Reposition the SGCM coolant pump (1) from the radiator core support (3).
    7. Fig 2: View Of SGCM Coolant Pump, Bolts & Radiator Core Support
    GM1206679Courtesy of GENERAL MOTORS CORP.
  7. Open the coolant pump inlet hose clip (3) located on the frame rail.
  8. Reposition the SGCM coolant pump inlet hose clamp (1) from the SGCM coolant pump (2).
  9. Remove the SGCM coolant pump inlet hose (4) from the SGCM coolant pump (2).
  10. Remove the SGCM coolant pump inlet hose (4) from the vehicle.
    11. Fig 3: View Of Coolant Pump Inlet Hose, Clamp & Pump
    GM1206695Courtesy of GENERAL MOTORS CORP.
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